A DIAMOND AND EMERALD TARGET RING in 18ct white gold, set with an old cut diamond of 1.68 carats in

A DIAMOND AND EMERALD RING in 18ct white gold, the geometric face set with a central old cut diamond of 0.60 carats accented by baguette cut emeralds and single cut diamonds, stamped 750, size N / 6.5

AN EMERALD AND DIAMOND RING in 18ct white gold, in foliate design, set with a step cut emerald of 0.40 carats and old cut diamond of 0.50 carats, accented by further rose cut diamonds, stamped 750, si

A DIAMOND RING in 18ct white gold, set with an old cut diamond of 0.40 carats, the band half set with round brilliant cut diamonds, partial British hallmarks, size M / 6, 4.8g.

A DIAMOND CLUSTER RING in 18ct white gold, set with an old European cut diamond of 1.00 carats, in a border of single cut diamonds, stamped 750, size Q / 8, 3.2g.

A SOLITAIRE DIAMOND DRESS RING in 18ct white gold, set with an old cut diamond of 0.43 carats, unmarked, size N / 6.5, 3.5g.

A DIAMOND THREE STONE RING in 18ct white gold, set with three old cut diamonds all totalling 0.6-0.7 carats, British hallmarks, size M / 6, 3.3g.

NO RESERVE - A DIAMOND RING in 18ct yellow and white gold, set with three old cut diamonds in trefoil formation, all totalling 0.6-0.8 carats, stamped 18K 750, size N1/2 / 7, 3.8g.

A DIAMOND DRESS RING in 18ct yellow and white gold, set with an emerald cut diamond of 1.66 carats within a border of round cut and tapering baguette cut diamonds, the diamonds all totalling 2.9-3.1 c

A FINE RUBY AND DIAMOND CLUSTER RING in 18ct yellow gold and white gold, set with an oval cut ruby of 7.05 carats in a cluster of old cut diamonds, the diamonds all totalling 1.3-1.4 carats, stamped 1

AN EMERALD AND DIAMOND CLUSTER RING in 18ct yellow gold, set with a cushion cut emerald of 3.65 carats in a cluster of old cut diamonds totalling 1.8-2.0 carats, stamped 18ct, size O / 7, 7.4g.

NO RESERVE - AN EMERALD AND DIAMOND RING in 18ct white gold, set with a cabochon emerald of 4.66 carats in a cluster of round brilliant cut diamonds, with further diamonds to the shoulders of the band

NO RESERVE - AN EMERALD AND DIAMOND RING in 18ct white gold, set with an oval cabochon emerald of 3.31 carats, within a border of round brilliant and baguette cut diamonds, with further round brillian

AN EMERALD AND DIAMOND RING in 18ct white gold, set with a step cut emerald of 1.00 carat between two baguette cut diamonds, British hallmarks, size M / 6, 3.6g.

AN EMERALD AND DIAMOND RING in 18ct white gold, set to the centre with an oval cut emerald of 2.75 carats in a border of round brilliant and baguette cut diamonds totalling 1.03 carats, stamped 750, s

AN ANTIQUE EMERALD AND DIAMOND RING, 1910 in 18ct yellow gold, set with three graduated step cut emeralds totalling 1.98 carats in a border of old cut diamonds, engraved 13.8.16, full British hallmark

A FINE ART DECO PINK TOURMALINE AND DIAMOND RING in 18ct white gold, set with two rectangular step cut pink tourmalines of 1.78 and 1.32 carats, the pierced openwork shoulders set with old cut diamond

AN EMERALD AND DIAMOND RING in 18ct white gold, set with an octagonal cut emerald of 2.33 carats in a border of round brilliant cut diamonds, accented by foliate details set with further round brillia

AN EMERALD AND DIAMOND THREE STONE RING in 18ct white gold, set with an octagonal step cut emerald of 4.46 carats between two trilliant cut diamonds both totalling 0.65 carats, stamped 18K, size N / 6

AN EMERALD AND DIAMOND RING in 18ct white gold, set with a cushion cut emerald of 8.35 carats, in a double border of round brilliant cut diamonds, accented by trios of marquise cut diamonds, the bifur

A COLOMBIAN EMERALD AND DIAMOND RING in 18ct white gold, set with an octagonal cut emerald of 1.47 carats accented by pairs of round cut diamonds, Swedish assay marks for 18ct gold, size I / 4, 3.3g.

Crafted out of 14K white and yellow gold, set with old mine- and old European-cut diamonds, weighing a total of approximately 0.96 carats, accented with four emeralds, weighing a total of approximatel

NO RESERVE - A COLOMBIAN EMERALD AND DIAMOND RING, CIRCA 1945 in 18ct yellow gold, set with an octagonal cut emerald of 1.31 carats in a scrolling border set with two old round cut diamonds, Swedish a

A diamond, emerald and eighteen karat white gold ringfeaturing an old mine-cut diamond, weighing approximately 0.75 carat, within geometric mount, set with round brilliant-cut diamonds and emerald bul

AN AQUAMARINE AND DIAMOND CLUSTER RING in 18ct white gold, set with an emerald cut aquamarine of 3.71 carats in a border of round cut diamonds totalling all 0.11 carats, stamped Au750, size O / 7, 4.0